www.isro.gov.in Indian Space Research Organisation

LAND OCEAN ATMOSPHERE ENVIRONMENT SOCIETY SPACE

COMMUNICATION & NAVIGATION APPLICATIONS

Satellite communication technology offers the unique capability of simultaneously reaching out to a large number of people living even in the remote areas of the country. The Indian National Satellite (INSAT) system, established in 1983, has revolutionised the country’s communication sector. The system provides services for telecommunications, TV broadcasting, rural area connectivity, weather forecasting, disaster warning and Search & Rescue operations.

In view of growing demand for location-based services in the country, ISRO has recently embarked upon developing its own satellite navigation systems, i.e. Indian Regional Navigation Satellite System (IRNSS) and GPS Aided and GEO Augmented Navigation (GAGAN). IRNSS is being developed to provide position information services to users in the country and the region extending up to 1500 km from its boundary. GAGAN is a Satellite Based Augmentation System (SBAS), implemented jointly with Airport Authority of India, to provide navigation services with accuracy and integrity required for civil aviation applications.

· Telecommunications· Television broadcasting · Internet· VSAT connectivity for remote

locations· Satellite news gathering and

dissemination· Radio networking · Mobile satellite services · Satellite aided Search and Rescue · Tele-medicine· Tele-education· Village Resource Centres

· Independent regional navigation satellite system

MAJOR HIGHLIGHTS

MAJOR BENEFITS

· Ubiquitous coverage

· Serving far-off areas

· Anywhere connectivity

Maitri, Antarctica

Automatic Weather StationTsunami Early Warning Communication System Equipments for Emergency Communication

(a) SMS & vehicle tracking system(b) Portable multimedia terminal(c) Type-D terminal (satellite phone)(d) Distress alert transmitter for fishermen

SARSAT: Search and Rescue Satellite

Aided Tracking

ELT: Emergency Locator Transmitter

PLB: Personal Locator Beacon

INMCC: Indian Mission Control Centre

EPIRB: Emergency Position Indicating

Radio Beacon

RCC: Rescue Coordination Centre

MCC: Mission Control Centre

SAR FORCES: Search and Rescue Forces

LEOLUT: LEO Local User Terminal

GEOLUT: GEO Local User Terminal

Satellite Aided Search and Rescue System

EPIRBELT

DISTRESSED

UNITS

ISTRAC

COSPAS-SARSAT

PLB

RCC MCC LEOLUT

GEOLUT

INMCC

SAR FORCES

INSAT

(a) (b)

(d)(c)

GSO

GEO

GSOGEO

GEO

IRIMS

CDMA Ranging

TT&C andNav. Uplink IRNSS

UserTT&C andNav. Uplink

CDMA Ranging

IRIMS

SCF

Laser Ranging

IRNSS TimingCentreINC

www.isro.gov.in Indian Space Research Organisation

OPERATIONAL PRODUCTS / SERVICES RESEARCH AREAS

· Telecommunications, TV & radio broadcasting, rural area connectivity

· Weather forecasting, disaster warning and Search & Rescue operations

· Navigation, location-based services, time synchronisation

· Commerce & industry applications

· Agriculture, environment study, fisheries, civil engineering

· Scientific & strategic applications

· Hand-held terminal development for Mobile Satellite Services (MSS)

· High throughput satellite for broadband connectivity

· Advanced technologies adopting high frequency bands (like Q & V), optical communication through satellite

· GNSS signal monitoring, GNSS-based remote sensing, GNSS/INS/Pseudolite integration, software defined GNSS receiver, multi-GNSS, Application-Specific Integrated Circuit (ASIC) development, low-cost multi-GNSS simulator, ionospheric delay processing

· Spoofing detection & mitigation

· Indoor navigation & strategic applications

LAND OCEAN ATMOSPHERE ENVIRONMENT SOCIETY SPACE

COMMUNICATION & NAVIGATION APPLICATIONS

Indian Regional Navigation Satellite System (IRNSS)

……. an independent regional navigation satellite system with 4 satellites in geosynchronous (GSO) and 3 satellites in geostationary (GEO) orbits

IRIMS: IRNSS Range & Integrity Monitoring Station INC: IRNSS Navigation Centre

IRNSS Applications: Terrestrial, Aerial and Marine Navigation; Disaster Management; Vehicle tracking and fleet management; Integration with mobile phones; Precise Timing; Mapping and Geodetic data capture; Terrestrial navigation aid for hikers and

travellers; Visual and voice navigation for drivers